Electronic excitation effects in ion-irradiated high-Tc superconductors

被引：15

作者：

Ishikawa, N ^{[1
]}

Chimi, Y

Iwase, A

Maeta, H

Tsuru, K

Michikami, O

Kambara, T

Mitamura, T

Awaya, Y

Terasawa, M

机构：

[1] Japan Atom Energy Res Inst, Adv Sci Res Ctr, Tokai, Ibaraki 31911, Japan

[2] Japan Atom Energy Res Inst, Dept Mat Sci & Engn, Tokai, Ibaraki 31911, Japan

[3] NTT, Basic Res Labs, Device Phys Res Lab, Tokai, Ibaraki 31911, Japan

[4] Iwate Univ, Fac Engn, Morioka, Iwate 020, Japan

[5] RIKEN, Inst Phys & Chem Res, Atom Phys Lab, Wako, Saitama 35101, Japan

[6] Himeji Inst Technol, Fac Engn, Himeji, Hyogo 67122, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1998年 / 135卷 / 1-4期

关键词：

ion irradiation; high-T-c superconductors; primary ionization rate; electronic excitation; nuclear stopping power; electronic stopping power;

D O I：

10.1016/S0168-583X(97)00644-7

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We have measured the fluence dependence of the c-axis lattice parameter in EuBa2Cu3Oy (EBCO) irradiated with various ions from He to Au over the wide energy range from 0.85 MeV to 3.80 GeV. We have observed a linear increase of the c-axis lattice parameter with increasing fluence for all irradiations. The slope of c-axis lattice parameter against fluence, which corresponds to the defect production rate, is separated into two contributions; the effect via elastic displacement and the effect via electronic excitation. The former contribution exhibits a linear increase against the nuclear stopping power, S-n. The latter contribution is scaled by the primary ionization rate, dJ/dx, rather than by the electronic stopping power, S-e, and is nearly proportional to (dJ/dx)(4). (C) 1998 Elsevier Science B.V.

引用

页码：184 / 189

页数：6

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